Back سيبريديوم اريتينوم ARZ Cypripedium arietinum Azerbaijani Cypripedium arietinum CEB Widder-Frauenschuh German Cypripedium arietinum Spanish Cypripedium arietinum French Cypripedium arietinum Portuguese Башмачок бараноголовый Russian Cypripedium arietinum Swedish Cypripedium arietinum Vietnamese
| Cypripedium arietinum | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Orchidaceae |
| Subfamily: | Cypripedioideae |
| Genus: | Cypripedium |
| Species: | C. arietinum
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| Binomial name | |
| Cypripedium arietinum R.Br. (1813)
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| Synonyms | |
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Cypripedium arietinum, the ram's head lady's slipper,[2] is a rare terrestrial orchid that grows in lightly to heavily shaded areas with calcareous soils. It is characteristic of the alvars around the Great Lakes in North America].[2][3] In Canada, it is found from Quebec to Saskatchewan, plus an isolated population in Nova Scotia, where it grows on gypsum based soils, 330 km away from the nearest population in Maine.[4][5]
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- ^ Ames, D., P. B. Acheson, L. Heshka, B. Joyce, J. Neufeld, R. Reeves, E. Reimer, and I. Ward. 2005. Orchids of Manitoba: A field guide. Native Orchid Conservation Inc., Winnipeg.
- ^ a b NRCS. "Cypripedium arietinum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 1 July 2016.
- ^ Catling, P.M.; Brownell, V.R. (1999). "Alvars of the Great Lakes Region". In Anderson, R. C.; Fralish, J. S.; Baskin, J. M. (eds.). Savannas, Barrens and Rock Outcrop Communities of North America. Cambridge: Cambridge University Press. pp. 375–391. ISBN 9780511574627.
- ^ Blaney, S.; Mazerolle, D. (2007). Nova Scotia Provincial Status Report on Ram's-Head Lady Slipper (Cypripredium arietinum R. Br.). Nova Scotia Department of Natural Resources.
- ^ "Cypripedium arietinum". County-level distribution map from the North American Plant Atlas (NAPA). Biota of North America Program (BONAP). 2014.